Passage Key is a small island off the coast of Anna Maria. The sandy shallow waters of this island are amazing places to see schools of large fish, sea turtles, sting rays and small sharks. You can also find an array of crabs, shells and sand dollars at certain times of the year. The west/gulf side of the island is a clothing-optional beach. Families usually stay on the inland shore and enjoy the clear waters to swim and explore. See a map below of the route from Sunset Boat Rental to Passage Key.